Flash-lamp.



D. HARRINGTON.

FLASH LAMP.

APPLIOATION FILED MAY 7, 1912.

1,042,341 Patented Oct.22,1912.

WIT/H8858: I/VVE/VTOR %7 WW- v Amy 444 5:.

COLUMBIA PLANDGRAPH CO-.WASHINGTON. D. c.

DAVID HARRINGTON, OF EAGLE LAKE, TEXAS.

FLASI-LLAIEP.

Specification of Letters Patent.

Patented Get. 22, 19112.

Application filed May 7, 1912. Serial No. 695,621.

cit 207mm it may concern:

Be itknown that I, DAVID Hannmoron, a citizen of the United States,residing Eagle Lake, in the county of Colorado and State of Texas, haveinvented certain new and useful Improvements in l lash-Lamps, of whichthe following a specification.

My invention relates to new and, useful improvements in flash lamps, andhas more particular relation to such devices as are used byphotographers in taking photographs.

The object of the invention is to provide a device of the characterdescribed, whereby the blaze generated by the ordinary alcohol lamp willbe positively driven against the powder on the flash pan and will ignitethe same.

Another object of the invention resides in the provision of a primingdevice whereby a portion of the powder is driven through the flame ofthe lamp, thereby causing a small explosion which will increase theflame and render the explosion of the powder on the flash pan morecertain.

A still further feature of the invention resides in the provision of ameans for preventing the flame from being driven by air currents againstthe powder on the flash pan and thereby preventing an accidental explo-S1011.

With the above and other objects in view, the invention has particularrelation to certain novel features of construction and arrangement ofparts, an example of which is given in this specification andillustrated. in the accompanying drawings, wherein Figure 1 is a planview of the complete device. Fig. 2 is a sectional side elevationthereof, and Fig. 8 is a front elevation thereof.

Referring now more particularly to the drawings, the numeral 1 refers tothe flash pan which is preferably semi-circular in form and from theedge of which depends the rim 2. The straight edge of this pan issecured to a vertical metallic plate 3 by solder or some similarsecuring means.

To the rear portion of the plate 3 is secured the lamp receptacle il inthe lower portion of which the ordinary alcohol lamp 5 is arranged. Ametallic tube 6 communicates with said lamp receptacle at a point inhorizontal alinement with the flame of the lamp 5 and to the free end ofthis tube a small rubber hose 7 is attached, which carries the rubberbulb 8. hen the rubber bulb 8 is collapsed by hand pressure, a jet ofair is forced through the hose 7 and tube 6 into the lamp receptacle tand against the flame of the lamp The tube carries a small hopper 9 nearthe lamp receptacle 4 which communicates with the tube 6 and is providedto receive a small quantity of flashing powder.

In the metallic plate 3, there is an orifice 10 alined with the tube 6and the flame of the lamp 5 and to the front side of said plate 3 issecured a metallic apron 11 whose lower or free edge extends down oversaid orifice, but does not entirely close the same.

When a jet of air is driven through the tube 6, it carries a smallquantity of the flashing powder from the hopper 9 and forces the samethrough the flame of the lamp 5 and the explosion of said powder socarried through said flame increases the size of the flame and the jetof air drives it through the orifice 10 and ignites the powder arrangedin front of said orifice on the flash pan 1 and an explosion immediatelyoccurs giving the desired bright light commonly required in the processof photography. The apron 11 serves to drive the blaze, passing throughthe orifice 10, downwardly and thus insures ignition of the powder onthe flash pan and further operates to pre vent the flame of the lamp 5from being driven by an accidental gust of wind through the orifice 10and thus prevents an accidental explosion.

Secured to the plate 3 and arranged above the flash pan is a deflector12 composed of sheet material and provided for the purpose ofdistributing the blaze caused by the explosion and thereby materiallyincreasing the light generated.

While I have shown the preferred form of my device, variousmodifications may be made therein in the mechanical construction and Ihereby reserve the right to change the device so long as I do not departfrom the principle thereof as set forth in the appended claims.

Nhat- I claim is 1. A device of the character described including asuitable flash pan and a vertically extending plate carried by one edgethereof and having an orifice therethrough, a lamp receptacle carried bysaid device and a lamp arranged therein, whose flame is alined with saidorifice, a pneumatic tube discharging into said lamp receptacle andagainst the flame of said lamp and arranged to drive said flame throughsaid orifice, a suitable hopper discharging into said tube and a meansfor creating an air current through said tube.

2. A device of the character described including a suitable pan forreceiving an explosive powder and a vertically extending plate carriedby one edge thereof and having an orifice therethrough, a lampreceptacle carried by said device and a lamp so arranged therein thatits flame will be alined with said orifice, a pneumatic tube discharginginto said lamp receptacle and against the flame of said lamp andarranged to drive said flame through said orifice, a metallic apronsecured to said plate and ex tending down over said orifice, a suitablehopper discharging into said tube, and means for creating an air currentthrough said tube.

3. A device of the character described including a suitable flash panand a vertically extending plate carried by one edge thereof and havingan orifice therethrough, an apron secured to said plate and partiallyclosing said orifice, a deflector secured to said plate and arrangedabove said orifice, a lamp receptacle carried by said device and a lampso arranged therein that its flame will be alined with said orifice, apneumatic tube discharging into said lamp receptacle and against theflame of said lamp, a suitable hopper discharging into said tube and ameans for creating an air current through said tube.

4. A device of the character described, including a suitable flash panand a vertically extending plate carried by one edge thereof and havingan orifice therethrough, a lamp receptacle carried by said device and alamp arranged thereon whose flame is alined with said orifice, a tubedischarging into said lamp receptacle and against the flame of said lampand arranged to drive said flame through said orifice, a suitable hopperdischarging into said tube and a means for generating a current of airthrough said tube.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

DAVID HARRINGTON. lVit-nesses MAY MONTGOMERY,

J. W. YEAGLEY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

